中文摘要：

蒙脱石颗粒周围的溶液浓度对其膨胀性有较大影响,传统的双电层模型可以对电解质环境下蒙脱石的膨胀特性做出较好的模拟,但并不适于蒸馏水的情况。针对膨润土在蒸馏水或纯水中已有的膨胀特性试验,本文在前人的研究基础上详细推导了蒸馏水中蒙脱石晶层间的膨胀压力模型,并给出一种简便算法。运用此算法可以避免非线性方程的求解,从而可以较方便的将膨胀力和晶层间距联系起来。

英文摘要：

The swelling character of montmorillonite particles was considerably influenced by the concentrations of solutions.Though the classic double layer model could better simulate swelling under the conditions of electrolyte solutions,it could not be applied to the swelling of montmorillonites inundated with distilled water.According to the experiments on the swelling characteristics of bentonites inundated with distilled water or pure water,the model to simulate the swelling pressure between paralleled crystal layers of montmorillonites under the conditions of distilled water was formed,and a simpler algorithm was presented.In this method,the nonlinear equations was not necessary to be solved,so the swelling pressures and the interlayer distances could be connected easily.